Power Handling

Your speakers should be matched to your amplifier. Any speaker you buy will be rated with particular amplifier wattage. It's possible, however, to under-drive as well as over-drive a speaker. If your speaker is rated for 100 Watts, and your amplifier only has 10 Watts, the tiny amplifier will be driven into distortion trying to power the speakers. You can easily destroy speakers (and amplifiers) doing this.